Let's roll up our sleeves and solve this. We have 165 and we're going to multiply it by 102, essentially adding 165 to itself 102 times.
Step 1: 0 + 165 = 165
Step 2: 165 + 165 = 330
Step 3: 330 + 165 = 495
Step 4: 495 + 165 = 660
Step 5: 660 + 165 = 825
Step 6: 825 + 165 = 990
Step 7: 990 + 165 = 1155
Step 8: 1155 + 165 = 1320
Step 9: 1320 + 165 = 1485
Step 10: 1485 + 165 = 1650
Step 11: 1650 + 165 = 1815
Step 12: 1815 + 165 = 1980
Step 13: 1980 + 165 = 2145
Step 14: 2145 + 165 = 2310
Step 15: 2310 + 165 = 2475
Step 16: 2475 + 165 = 2640
Step 17: 2640 + 165 = 2805
Step 18: 2805 + 165 = 2970
Step 19: 2970 + 165 = 3135
Step 20: 3135 + 165 = 3300
Step 21: 3300 + 165 = 3465
Step 22: 3465 + 165 = 3630
Step 23: 3630 + 165 = 3795
Step 24: 3795 + 165 = 3960
Step 25: 3960 + 165 = 4125
Step 26: 4125 + 165 = 4290
Step 27: 4290 + 165 = 4455
Step 28: 4455 + 165 = 4620
Step 29: 4620 + 165 = 4785
Step 30: 4785 + 165 = 4950
Step 31: 4950 + 165 = 5115
Step 32: 5115 + 165 = 5280
Step 33: 5280 + 165 = 5445
Step 34: 5445 + 165 = 5610
Step 35: 5610 + 165 = 5775
Step 36: 5775 + 165 = 5940
Step 37: 5940 + 165 = 6105
Step 38: 6105 + 165 = 6270
Step 39: 6270 + 165 = 6435
Step 40: 6435 + 165 = 6600
Step 41: 6600 + 165 = 6765
Step 42: 6765 + 165 = 6930
Step 43: 6930 + 165 = 7095
Step 44: 7095 + 165 = 7260
Step 45: 7260 + 165 = 7425
Step 46: 7425 + 165 = 7590
Step 47: 7590 + 165 = 7755
Step 48: 7755 + 165 = 7920
Step 49: 7920 + 165 = 8085
Step 50: 8085 + 165 = 8250
Step 51: 8250 + 165 = 8415
Step 52: 8415 + 165 = 8580
Step 53: 8580 + 165 = 8745
Step 54: 8745 + 165 = 8910
Step 55: 8910 + 165 = 9075
Step 56: 9075 + 165 = 9240
Step 57: 9240 + 165 = 9405
Step 58: 9405 + 165 = 9570
Step 59: 9570 + 165 = 9735
Step 60: 9735 + 165 = 9900
Step 61: 9900 + 165 = 10065
Step 62: 10065 + 165 = 10230
Step 63: 10230 + 165 = 10395
Step 64: 10395 + 165 = 10560
Step 65: 10560 + 165 = 10725
Step 66: 10725 + 165 = 10890
Step 67: 10890 + 165 = 11055
Step 68: 11055 + 165 = 11220
Step 69: 11220 + 165 = 11385
Step 70: 11385 + 165 = 11550
Step 71: 11550 + 165 = 11715
Step 72: 11715 + 165 = 11880
Step 73: 11880 + 165 = 12045
Step 74: 12045 + 165 = 12210
Step 75: 12210 + 165 = 12375
Step 76: 12375 + 165 = 12540
Step 77: 12540 + 165 = 12705
Step 78: 12705 + 165 = 12870
Step 79: 12870 + 165 = 13035
Step 80: 13035 + 165 = 13200
Step 81: 13200 + 165 = 13365
Step 82: 13365 + 165 = 13530
Step 83: 13530 + 165 = 13695
Step 84: 13695 + 165 = 13860
Step 85: 13860 + 165 = 14025
Step 86: 14025 + 165 = 14190
Step 87: 14190 + 165 = 14355
Step 88: 14355 + 165 = 14520
Step 89: 14520 + 165 = 14685
Step 90: 14685 + 165 = 14850
Step 91: 14850 + 165 = 15015
Step 92: 15015 + 165 = 15180
Step 93: 15180 + 165 = 15345
Step 94: 15345 + 165 = 15510
Step 95: 15510 + 165 = 15675
Step 96: 15675 + 165 = 15840
Step 97: 15840 + 165 = 16005
Step 98: 16005 + 165 = 16170
Step 99: 16170 + 165 = 16335
Step 100: 16335 + 165 = 16500
Step 101: 16500 + 165 = 16665
Step 102: 16665 + 165 = 16830

So, 165*102 = 16830